Vindictive
vindictive /vɪnˈdɪktɪv/
adj. 怀恨在心的，有报仇心的
It means that someone is trying to harm or upset sb.; or showing that he/she wants to, because he/she thinks that they have harmed him/her.
它指的是某人试图伤害他人或使他人难过;或有意这样做，因为他认为自己受到了别人的伤害。
We can see that she is a vindictive person.
我们可以看出来，她是个报复心很强的人。
Stop being mean and vindictive, or you will end up without friends.
别再这么刻薄和一心想报复啦，否则你最后会没有朋友的。
